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1N4954 Datasheet, PDF (1/3 Pages) Semtech Corporation – 5 WATT VOLTAGE REGULATOR
DIGITRON SEMICONDUCTORS
1N4954-1N4996
5 WATT GLASS ZENER DIODES
MAXIMUM RATINGS
Operating Temperature:
Storage Temperature:
Power Dissipation:
Thermal Resistance:
Thermal Impedance @ 10ms:
Forward Voltage:
-65 to +175°C
-65 to +175°C
5 Watts @ TL = 65°C at 3/8” from body, derate linearly to zero @ 175°C.
22°C/W junction to lead at 3/8” from body
1.8°C/W
1.50 V @ 1.0A
ELECTRICAL CHARACTERISTICS
Type
Electrical Specifications @ 25°C
Nominal
Zener
Voltage
VZ @ IZT
Test
Current
IZT
Maximum Zener
Impedance
ZZ @ IZT
ZZK @ IZK
1mA
Voltage
Regulation
UVZ
(note 1)
Maximum
Reverse
Leakage
Current
Voltage
IR
VR
Volts
mA
1N4954
6.8
175
1N4955
7.5
175
1N4956
8.2
150
1N4957
9.1
150
1N4958
10.0
125
1N4959
11.0
125
1N4960
12.0
100
1N4961
13.0
100
1N4962
15.0
75
1N4963
16.0
75
1N4964
18.0
65
1N4965
20.0
65
1N4966
22.0
50
1N4967
24.0
50
1N4968
27.0
50
1N4969
30.0
40
1N4970
33.0
40
1N4971
36.0
30
1N4972
39.0
30
1N4973
43.0
30
1N4974
47.0
25
1N4975
51.0
25
1N4976
56.0
20
1N4977
62.0
20
1N4978
68.0
20
1N4979
75.0
20
1N4980
82.0
15
1N4981
91.0
15
1N4982 100.0
12
144 Market Street
Kenilworth NJ 07033 USA
OHMS
1.0
1.5
1.5
2.0
2.0
2.5
2.5
3.0
3.5
3.5
4.0
4.5
5.0
5.0
6.0
8
10
11
14
20
25
27
35
42
50
55
80
90
110
OHMS
Volts
1000
0.7
800
0.7
600
0.7
400
0.7
125
0.8
130
0.8
140
0.8
145
0.9
150
1.0
155
1.1
160
1.2
165
1.5
170
1.8
175
2.0
180
2.0
190
2.5
200
2.8
220
3.0
230
3.0
240
3.3
250
3.5
270
4.0
320
4.4
400
5.0
500
5.5
620
6.0
720
6.6
760
7.5
800
8.0
phone +1.908.245-7200
fax +1.908.245-0555
µA Volts
150 5.2
100 5.7
50
6.2
25
6.9
25
7.6
10
8.4
10
9.1
10
9.9
5
11.4
5
12.2
5
13.7
2
15.2
2
16.7
2
18.2
2
20.6
2
22.8
2
25.1
2
27.4
2
29.7
2
32.7
2
35.8
2
38.8
2
42.6
2
47.1
2
51.7
2
56.0
2
62.2
2
69.2
2
76.0
Maximum Ratings
Maximum
Temperature
Coeff.
αVz @ IZT
Maximum
Continuous
Current
IZM
%/°C
mA
.05
700
.06
630
.06
580
.06
520
.07
475
.07
430
.07
395
.08
365
.08
315
.08
294
.085
264
.085
237
.085
216
.090
198
.090
176
.090
158
.095
144
.095
132
.095
122
.095
110
.095
100
.095
92
.095
84
.100
76
.100
70
.100
63.0
.100
58.0
.100
52.5
.100
47.5
sales@digitroncorp.com
www.digitroncorp.com
Surge
Current
IZSM
8.3ms
square
wave
Amps
29.3
26.4
24.0
22.0
20.0
19.0
18.0
16.0
12.0
10.0
9.0
8.0
7.0
6.5
6.0
5.5
5.0
4.5
4.0
3.5
3.2
3.0
2.8
2.5
2.2
2.0
1.8
1.6
1.4
Rev. 20120710
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